Just a test for perimeter and cloning. In the future, I will create other math-related projects.
The estimated perimeter uses the formula 2(length + width) while the "real" perimeter counts the real amount of square units, using the formula 2(length + width) - 4 for quadrilaterals and 4(side - 1) for a square. It is needed to subtract four to account the recounting of the corners marked blue.
